diff --git a/.gitignore b/.gitignore
index bf98a32..8ed73a2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@ dist/
 *.egg-info/
 *.pyc
 *.swp
+.tox/
diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000..321a63c
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,6 @@
+[tox]
+envlist = py27, py35, py36, pypy, pypy3
+skip_missing_interpreters=true
+[testenv]
+deps = pytest
+commands = pytest